Figure 1.
(a) Lung lesion histology (H&E, 200x); (b) cytokeratin-7 immunohistochemical stain; (c) immunohistochemical stain; (d) CA19-9 immunohistochemical stain (200x for all IHC stains).
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.